WO2018054413A1 - Multi-clutch system and hybrid module for a motor vehicle - Google Patents

Multi-clutch system and hybrid module for a motor vehicle Download PDF

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Publication number
WO2018054413A1
WO2018054413A1 PCT/DE2017/100168 DE2017100168W WO2018054413A1 WO 2018054413 A1 WO2018054413 A1 WO 2018054413A1 DE 2017100168 W DE2017100168 W DE 2017100168W WO 2018054413 A1 WO2018054413 A1 WO 2018054413A1
Authority
WO
WIPO (PCT)
Prior art keywords
clutch
clutch device
actuating
transmission element
transmission
Prior art date
Application number
PCT/DE2017/100168
Other languages
German (de)
French (fr)
Inventor
Dirk Hofstetter
Michael Baumann
Original Assignee
Schaeffler Technologies AG & Co. KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=58454830&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2018054413(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to CN201780057859.8A priority Critical patent/CN109715967B/en
Priority to KR1020197007854A priority patent/KR102331562B1/en
Priority to DE112017004722.6T priority patent/DE112017004722A5/en
Publication of WO2018054413A1 publication Critical patent/WO2018054413A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/385—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs double clutches, i.e. comprising two friction disc mounted on one driven shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D21/00—Systems comprising a plurality of actuated clutches
    • F16D21/02—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways
    • F16D21/06—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways at least two driving shafts or two driven shafts being concentric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D21/00—Systems comprising a plurality of actuated clutches
    • F16D21/08—Serially-arranged clutches interconnecting two shafts only when all the clutches are engaged
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/083—Actuators therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/087—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation the clutch being actuated by the fluid-actuated member via a diaphragm spring or an equivalent array of levers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D21/00—Systems comprising a plurality of actuated clutches
    • F16D21/02—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways
    • F16D21/06—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways at least two driving shafts or two driven shafts being concentric
    • F16D2021/0661—Hydraulically actuated multiple lamellae clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D21/00—Systems comprising a plurality of actuated clutches
    • F16D21/02—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways
    • F16D21/06—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways at least two driving shafts or two driven shafts being concentric
    • F16D2021/0676—Mechanically actuated multiple lamellae clutches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • the invention relates to a multiple clutch device for a hybrid module, which is suitable for a motor vehicle, such as a motor vehicle. a car, a truck or other commercial vehicle is provided, and which is to be coupled to an internal combustion engine. Furthermore, the invention relates to the hybrid module itself, which has the multiple coupling device.
  • a hybrid module usually comprises a connection device for the mechanical coupling of an internal combustion engine, a separating clutch with which torque from the internal combustion engine can be transferred to the hybrid module and with which the hybrid module is separable from the internal combustion engine, an electric machine for generating a driving torque with a rotor, and a Dual clutch device, with the torque from the electric machine and / or from the separating clutch to a drive train is transferable.
  • the dual clutch device comprises a first part clutch and a second part clutch. Each arranged clutch is associated with an actuating system.
  • the electric machine enables electric driving, power increase for engine operation and recuperation.
  • the separating clutch and its actuating system ensure the coupling or uncoupling of the internal combustion engine. If a hybrid module with a dual clutch is integrated into a drive train in such a way that the hybrid module is located in the torque transmission direction between the internal combustion engine and the transmission, the internal combustion engine, the hybrid module, the dual clutch with its actuation systems and the transmission must be arranged behind or next to one another in the vehicle. However, such an arrangement occasionally leads to space problems. In order to realize a very compact hybrid module with integrated dual clutch, an advantageous construction principle is to arrange the separating clutch and the two partial clutches of the double clutch directly next to one another. Various embodiments of hybrid modules or their multiple coupling devices are known from the prior art.
  • DE 10 2009 002 805 A1 discloses a parallel hybrid drive for motor vehicles with a variable-ratio vehicle transmission arranged in the drive train, an electric machine drive-connected to the transmission input shaft and with an internal combustion engine which can be coupled to or uncoupled from the transmission input shaft via a clutch arrangement.
  • the clutch arrangement further comprises a one-way clutch engaging in traction operation of the internal combustion engine and a friction clutch which can be connected in parallel thereto.
  • WO2008 / 052909 A1 discloses a drive train for a hybrid vehicle for mechanically coupling an internal combustion engine to an electric machine by means of a clutch.
  • the clutch may comprise a dog clutch, as well as a starting element which is connected to the electric machine and decouples selectable portions of the drive power from the electric machine.
  • the starting element may comprise a converter, a proportional clutch and / or a double clutch.
  • a clutch assembly for a powertrain of a motor vehicle with hybrid drive having a first clutch and a second clutch, each having rotatably decoupled rotary parts, wherein a first rotary part of the first clutch with a first rotary part of the second Coupling is rotatably connected.
  • the second clutch is designed as a double clutch, preferably as a wet or wet-running dual clutch.
  • German Patent Application DE 10 2016 212 846.9 teaches a clutch arrangement for a drive train of a motor vehicle having an electric machine and an internal combustion engine whose torque can be conducted to a transmission by a clutch unit, wherein a separating clutch between a Koppelor- gan, for introducing torque of the electric machine is prepared in the direction of the clutch unit, and a combustion engine side drivable transfer member is arranged.
  • An endless chain designed as a chain Traction means is used for transmitting a torque from the electric machine to the coupling member.
  • All of the illustrated hybrid modules or coupling devices are subject to operational wear and require a certain amount of space.
  • the present invention has for its object to provide a Mehrfachkupplungseinnchtung and equipped with the multi-coupling device hybrid module for a motor vehicle available, which have a long life with little space.
  • radial and axial in the context of the present invention always refer to the axis of rotation of the Mehrfachkupplungseinnchtung or the hybrid module.
  • the invention relates to a multiple clutch device for a hybrid module for coupling an internal combustion engine, which is a separating clutch, with the torque from the internal combustion engine to the Mehrfachkupplungseinnchtung transferable and with the multiple clutch device is separable from the internal combustion engine, and a dual clutch device, with the torque of an electric machine and / or transferable from the separating clutch to a drive train.
  • the dual clutch device has a first partial clutch and a second partial clutch; and a transmission element for forming a transmission between the electric machine and the multiple Coupling device for the purpose of transmitting a rotational movement between the electric machine and the multiple clutch device.
  • the individual clutches and the transmission element are arranged in a wet room.
  • This design allows the use of wear-reduced wet clutches, without having to forego a combination with the operation of an electric motor to form a hybrid module.
  • the clutches and the transmission element are arranged coaxially about a common axis of rotation and the effective diameter of the transmission element is less than the effective diameter of the frictionally torque transmitted components of a respective part clutch of the dual clutch device.
  • the radial distance of the effective pitch circle of the transmission element, in which the torque is transmitted from the transmission element is less than the radial distance of the fins of the partial clutches to the axis of rotation, with which torque is transmitted within the respective clutch by frictional engagement.
  • the multiple clutch device can be designed such that the separating clutch and the two partial clutches are arranged radially overlapping each other.
  • the separating clutch and the two partial clutches are arranged radially nested in one another, wherein they have substantially the same axial position along the common axis of rotation, but have radially different positions or extension dimensions.
  • the separating clutch may be arranged radially in relation to the two partial clutches. This means that the two sub-clutches with respect to the separating clutch on the outside and therefore arranged on the radial outer side are, wherein one of the two part clutches superimposed on the other part coupling radially outward.
  • the multiple clutch device should have a disconnect clutch actuation system for actuating the disconnect clutch, wherein the disconnect clutch actuation system is at least partially radially overlapped by the transmission element.
  • the separation clutch actuation system is at least partially radially within the effective pitch circle of the transmission element, so that in this way the axial extent of the multiple clutch device is further reduced.
  • the separation clutch actuation system may comprise a substantially annular piston-cylinder unit, the piston is substantially axially translationally displaceable, and further comprising an annular actuating bearing, which allows a rotational relative movement between the piston-cylinder unit and a clutch element of the clutch to be actuated, wherein the radial extent of the piston-cylinder unit with respect to the axis of rotation is greater than the radial distance of an orbit of the actuating bearing to the axis of rotation.
  • the piston-cylinder unit overlaps the actuating bearing radially outside at least in sections. Also by this configuration of the multiple coupling device can reduce their axial extent.
  • the multiple coupling device has a first actuating system for actuating the first partial coupling and a second actuating system for actuating the second partial coupling, wherein the first actuating system and the second actuating system overlap each other radially at least in sections.
  • a radially nested double central initiator or -ausgurer can be used.
  • both actuating systems each have a substantially annular piston-cylinder unit whose piston is substantially axially translationally displaceable, and further in each case an annular actuating having a bearing relative to the rotary axis of a respective piston-cylinder unit with respect to the axis of rotation is greater than the distance of an orbit of a respective one Actuating bearing to the rotation axis.
  • the radial extensions of the respective piston-cylinder units and the orbits are the same.
  • the transmission element may be a sprocket for forming a chain drive; a pulley for forming a belt drive; or a gear for forming a gear transmission.
  • the belt drive as a toothed belt drive or V-belt drive.
  • a realized gear transmission can be designed in one or more stages.
  • the multiple clutch device preferably has a rotary part common to the clutches of the multiple clutch device, which is supported on two angular contact ball bearings arranged in series along the axis of rotation.
  • the first angular contact ball bearing facing the connection for an internal combustion engine absorbs axial forces transmitted by the part couplings
  • the second angular contact ball bearing facing the connection for a transmission absorbs axial forces transmitted by the separating clutch.
  • the angular contact ball bearings can be prestressed in order to avoid bearing play-related axial movements of the clutches if a change in direction of the forces resulting from the clamping forces of the separating clutch and the two partial clutches should take place.
  • the common rotation part is also configured to receive the transmission element.
  • the transmission element is formed by the common rotation part.
  • the angular contact ball bearings themselves are axially and radially supported by a projection of the clutch cover.
  • This projection or this component of the clutch cover is also configured to receive bearings of a clutch input shaft with which the multiple clutch device is coupled or can be coupled to a combustion unit.
  • the clutch input shaft is mounted on the projection with a roller bearing designed as a fixed bearing and with a designed as a floating bearing needle bearing.
  • a hybrid module which comprises a multiple clutch device according to the invention and an electric machine for generating a drive torque with a rotor, wherein the rotor is arranged axially parallel with respect to the axis of rotation of the multiple clutch device and by means of a transmission, which the transmission element of Multiple coupling device comprises, is connected to the multiple coupling device.
  • a torque or a rotational movement can thus take place from the electric machine to the multiple clutch device for driving the multiple clutch device and consequently a drive module, or in the reverse direction from the multiple clutch device to the electric machine for the purpose of recuperation.
  • the hybrid module can be designed such that the rotor of the electric machine is arranged outside the wet space and connected rotationally fixed or connected to another transmission element which forms the transmission together with the gear element of the multiple clutch device, and that the further transmission element also in the Wet space is arranged and between the further transmission element and the rotor of the electric machine, a seal for sealing the wet space is arranged.
  • a drive arrangement for a motor vehicle with an internal combustion engine and a hybrid module according to the invention and with a vehicle transmission is provided, wherein the hybrid module is equipped with the combustion engine. combustion engine and the vehicle transmission is mechanically connected via couplings of the hybrid module.
  • the sole FIGURE 1 shows a multiple coupling device according to the invention in a partial section.
  • the dual clutch device 30 comprises a first partial clutch 40 and a second partial clutch 50. All three clutches 10, 40, 50 are arranged in a wet chamber 90. This means that all three clutches 10,40,50 are all designed as wet clutches. Furthermore, all three clutches 10, 40, 50 are rotationally coupled to one another via a common rotary part 80.
  • a transmission element 70 is fixed, which in the embodiment shown here is a sprocket for forming a chain drive.
  • This chain drive is connected to a pinion of an electric machine, not shown here, which is arranged outside of the wet space 90.
  • a seal not shown here for sealing the wet chamber 90 is arranged.
  • the disconnect clutch 10 is associated with a disconnect clutch actuation system 11, which comprises an annular piston-cylinder unit 12 and an actuation bearing 20.
  • the radial extent 13 of the piston-cylinder unit 12 is clearly larger than the radial distance of the orbit 21 of the actuating bearing 20 to the axis of rotation. 1 This allows the illustrated radial interleaving of the piston-cylinder unit 12 and the actuating bearing 20th
  • the effective diameter 71 of the transmission element 70 is less than the effective diameter 60 of the frictionally torque torque transmitted components of the dual clutch device 30 and the first part of clutch 40 and second part of the clutch 50. This causes one of a coupled peltelten electrical Registered torque is transmitted to the multiple clutch device with a relatively low peripheral speed of the transmission element, so that the tendency to oscillate is reduced. In addition, at the same time the axis-parallel arrangement of the electric machine is made possible, essentially independently of the distance to the axis of rotation 1.
  • a first actuating system 41 associated with the first partial clutch 40 and the second actuating system 51 associated with the second partial clutch 50 are arranged radially nested one inside the other.
  • a first pressure pot 43 or, by means of a second actuation system 51, a second pressure pot 53 for axially displacing the respective part-coupling 40, 50 is displaced.
  • the common rotary part 80 is rotatably mounted with a bearing on a clutch cover 120 and its axial projection 121.
  • This bearing comprises a first angular contact ball bearing 1 1 1 and a second angular contact ball bearing 1 12.
  • the two angular contact ball bearings 1 1 1, 1 12 are configured and arranged so that they can absorb the axial forces registered by the couplings 20,40,50 and to the clutch cover 120 and its projection 121 can transmit.
  • Also rotatably mounted on the clutch cover 120 and its projection 121 is the clutch input shaft 130, by means of a fixed bearing 131 designed as a roller bearing and by means of a movable bearing 132 designed as a needle bearing.
  • the present invention provides a multiple clutch device available, which has a high life expectancy with an axially very small dimensioned space due to the arrangement of the couplings in the wet room.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Mechanical Operated Clutches (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Arrangement Of Transmissions (AREA)

Abstract

The invention relates to a multi-clutch system for a hybrid module for coupling an internal combustion engine, comprising a disconnect clutch (10), with which torque can be transmitted from the internal combustion engine onto the multi-clutch system and with which the multiple clutch system can be disconnected from the internal combustion engine; a dual clutch device (30), with which torque can be transmitted from an electrical machine and/or from the disconnect clutch (10) onto a powertrain, including a first partial clutch (40) and a second partial clutch (50); and a gear element (70) for forming a transmission between the electrical machine and the multi-clutch system to transmit a rotational movement between the electrical machine and the multi-clutch system, the individual clutches and the gear element being arranged in a wet space (90). The invention makes a multi-clutch system available which, due to the arrangement of the clutches in the wet space, has a long service life and requires little axial installation space.

Description

Mehrfachkupplungseinrichtung und Hybridmodul für ein Kraftfahrzeug  Multiple clutch device and hybrid module for a motor vehicle
Die Erfindung betrifft eine Mehrfachkupplungseinrichtung für ein Hybridmodul, welches für ein Kraftfahrzeug, wie z.B. einen Pkw, einen Lkw oder ein anderes Nutzfahrzeug vorgesehen ist, und welches an eine Verbrennungskraftmaschine anzukoppeln ist. Des Weiteren betrifft die Erfindung das Hybridmodul selbst, das die Mehrfachkupplungseinrichtung aufweist. The invention relates to a multiple clutch device for a hybrid module, which is suitable for a motor vehicle, such as a motor vehicle. a car, a truck or other commercial vehicle is provided, and which is to be coupled to an internal combustion engine. Furthermore, the invention relates to the hybrid module itself, which has the multiple coupling device.
Ein Hybridmodul umfasst üblicherweise eine Anschlusseinrichtung zur mechanischen Ankopplung einer Verbrennungskraftmaschine, eine Trennkupplung, mit der Drehmoment von der Verbrennungskraftmaschine auf das Hybridmodul übertragbar ist und mit der das Hybridmodul von der Verbrennungskraftmaschine trennbar ist, eine elektrische Maschine zur Erzeugung eines Antriebsdrehmoments mit einem Rotor, sowie einer Doppelkupplungsvorrichtung, mit der Drehmoment von der elektrischen Maschine und/ oder von der Trennkupplung auf einen Antriebsstrang übertragbar ist. Die Doppelkupplungsvorrichtung umfasst eine erste Teilkupplung und eine zweite Teilkupplung. Jeder angeordneten Kupplung ist jeweils ein Betätigungssystem zugeordnet. A hybrid module usually comprises a connection device for the mechanical coupling of an internal combustion engine, a separating clutch with which torque from the internal combustion engine can be transferred to the hybrid module and with which the hybrid module is separable from the internal combustion engine, an electric machine for generating a driving torque with a rotor, and a Dual clutch device, with the torque from the electric machine and / or from the separating clutch to a drive train is transferable. The dual clutch device comprises a first part clutch and a second part clutch. Each arranged clutch is associated with an actuating system.
Die elektrische Maschine ermöglicht das elektrische Fahren, Leistungszuwachs zum Verbrennungsmotorbetrieb und Rekuperieren. Die Trennkupplung und deren Betätigungssystem sorgen für das Ankuppeln oder Abkuppeln des Verbrennungsmotors. Wenn ein Hybridmodul mit einer Doppelkupplung derart in einen Antriebsstrang integriert wird, dass sich das Hybridmodul in Drehmomentübertragungsrichtung zwischen Verbrennungsmotor und Getriebe befindet, müssen im Fahrzeug der Verbrennungsmotor, das Hybridmodul, die Doppelkupplung mit ihren Betätigungssystemen und das Getriebe hinter- oder nebeneinander angeordnet werden. Eine solche Anordnung führt jedoch gelegentlich zu Bauraumproblemen. Um ein sehr kompaktes Hybridmodul mit integrierter Doppelkupplung zu realisieren, besteht ein vorteilhaftes Bauprinzip darin, die Trennkupplung und die beiden Teilkupplungen der Doppelkupplung direkt nebeneinander anzuordnen. Aus dem Stand der Technik sind verschiedenste Ausführungsformen von Hybridmodulen bzw. deren Mehrfachkupplungseinrichtungen bekannt. The electric machine enables electric driving, power increase for engine operation and recuperation. The separating clutch and its actuating system ensure the coupling or uncoupling of the internal combustion engine. If a hybrid module with a dual clutch is integrated into a drive train in such a way that the hybrid module is located in the torque transmission direction between the internal combustion engine and the transmission, the internal combustion engine, the hybrid module, the dual clutch with its actuation systems and the transmission must be arranged behind or next to one another in the vehicle. However, such an arrangement occasionally leads to space problems. In order to realize a very compact hybrid module with integrated dual clutch, an advantageous construction principle is to arrange the separating clutch and the two partial clutches of the double clutch directly next to one another. Various embodiments of hybrid modules or their multiple coupling devices are known from the prior art.
So offenbart die DE 10 2009 002 805 A1 einen Parallel-Hybridantrieb für Kraftfahrzeuge mit einem im Antriebsstrang angeordneten Fahrzeuggetriebe mit veränderlicher Übersetzung, einer mit der Getriebeeingangswelle antriebsverbundenen Elektroma- schine und mit einem über eine Kupplungsanordnung mit der Getriebeeingangswelle kuppelbaren bzw. von dieser abkuppelbaren Verbrennungsmotor. Die Kupplungsanordnung umfasst weiterhin eine im Zugbetrieb des Verbrennungsmotors einkuppelnde Freilaufkupplung und eine dazu parallele schaltbare Reibungskupplung. For example, DE 10 2009 002 805 A1 discloses a parallel hybrid drive for motor vehicles with a variable-ratio vehicle transmission arranged in the drive train, an electric machine drive-connected to the transmission input shaft and with an internal combustion engine which can be coupled to or uncoupled from the transmission input shaft via a clutch arrangement. The clutch arrangement further comprises a one-way clutch engaging in traction operation of the internal combustion engine and a friction clutch which can be connected in parallel thereto.
Die WO2008/052909 A1 offenbart einen Antriebsstrang für ein Hybridfahrzeug zur mechanischen Kopplung eines Verbrennungsmotors mit einer elektrischen Maschine mittels einer Kupplung. Die Kupplung kann eine Klauenkupplung umfassen, sowie ein Anfahrelement, das mit der elektrischen Maschine verbunden ist und wählbare Anteile der Antriebsleistung aus der elektrischen Maschine auskoppelt. Das Anfahrelement kann ein Wandler, eine Proportionalkupplung und/oder eine Doppelkupplung umfassen. WO2008 / 052909 A1 discloses a drive train for a hybrid vehicle for mechanically coupling an internal combustion engine to an electric machine by means of a clutch. The clutch may comprise a dog clutch, as well as a starting element which is connected to the electric machine and decouples selectable portions of the drive power from the electric machine. The starting element may comprise a converter, a proportional clutch and / or a double clutch.
Aus der noch nicht veröffentlichten deutschen Patentanmeldung  From the not yet published German patent application
DE 10 2016 203 384.0 ist eine Kupplungsanordnung für einen Antriebsstrang eines Kraftfahrzeuges mit Hybridantrieb bekannt, wobei diese Kupplungsanordnung eine erste Kupplung und eine zweite Kupplung aufweist, die jeweils rotatorisch voneinander entkoppelbare Drehteile aufweisen, wobei ein erstes Drehteil der ersten Kupplung mit einem ersten Drehteil der zweiten Kupplung drehfest verbunden ist. Es ist hier als vorteilhafte Ausführungsform angegeben, dass die zweite Kupplung als Doppelkupplung, vorzugsweise als nasse bzw. nasslaufende Doppelkupplung ausgebildet ist. DE 10 2016 203 384.0 a clutch assembly for a powertrain of a motor vehicle with hybrid drive is known, said clutch assembly having a first clutch and a second clutch, each having rotatably decoupled rotary parts, wherein a first rotary part of the first clutch with a first rotary part of the second Coupling is rotatably connected. It is indicated here as an advantageous embodiment that the second clutch is designed as a double clutch, preferably as a wet or wet-running dual clutch.
Die deutsche Patentanmeldung DE 10 2016 212 846.9 lehrt eine Kupplungsanordnung für einen Antriebsstrang eines Kraftfahrzeuges mit einer Elektromaschine und einer Verbrennungskraftmaschine, deren Drehmoment zu einem Getriebe durch ein Kupplungsaggregat leitbar ist, wobei eine Trennkupplung zwischen einem Koppelor- gan, das zum Einleiten von Drehmoment der Elektromaschine in Richtung des Kupplungsaggregates vorbereitet ist, und einem verbrennungskraftmaschinen-seitig antreibbaren Übertragungsorgan angeordnet ist. Ein als Kette ausgebildetes Endlos- Zugmittel ist zur Übertragung eines Drehmoments von der Elektromaschine zum Koppelorgan eingesetzt. German Patent Application DE 10 2016 212 846.9 teaches a clutch arrangement for a drive train of a motor vehicle having an electric machine and an internal combustion engine whose torque can be conducted to a transmission by a clutch unit, wherein a separating clutch between a Koppelor- gan, for introducing torque of the electric machine is prepared in the direction of the clutch unit, and a combustion engine side drivable transfer member is arranged. An endless chain designed as a chain Traction means is used for transmitting a torque from the electric machine to the coupling member.
Sämtliche der dargestellten Hybridmodule bzw. Kupplungseinrichtungen sind einem betriebsbedingten Verschleiß unterworfen und benötigen einen bestimmten Bauraum.  All of the illustrated hybrid modules or coupling devices are subject to operational wear and require a certain amount of space.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Mehrfachkupplungseinnchtung sowie ein mit der Mehrfachkupplungseinrichtung ausgestattetes Hybridmodul für ein Kraftfahrzeug zur Verfügung zu stellen, die mit geringem Bauraum eine lange Lebensdauer aufweisen. The present invention has for its object to provide a Mehrfachkupplungseinnchtung and equipped with the multi-coupling device hybrid module for a motor vehicle available, which have a long life with little space.
Diese Aufgabe wird durch die erfindungsgemäße Mehrfachkupplungseinrichtung nach Anspruch 1 sowie durch das erfindungsgemäße Hybridmodul nach Anspruch 9 gelöst. Vorteilhafte Ausführungsformen der Mehrfachkupplungseinrichtung sind in den Unteransprüchen 2 bis 8 angegeben. Eine vorteilhafte Ausgestaltung des Hybridmoduls ist in Unteranspruch 10 angegeben. This object is achieved by the inventive multiple coupling device according to claim 1 and by the hybrid module according to claim 9. Advantageous embodiments of the multiple coupling device are specified in the subclaims 2 to 8. An advantageous embodiment of the hybrid module is specified in dependent claim 10.
Die Merkmale der Ansprüche können in jeglicher technisch sinnvollen Art und Weise kombiniert werden, wobei hierzu auch die Erläuterungen aus der nachfolgenden Beschreibung sowie Merkmale aus den Figuren hinzugezogen werden können, die er- gänzende Ausgestaltungen der Erfindung umfassen. The features of the claims may be combined in any technically meaningful manner, for which purpose the explanations from the following description as well as features from the figures which comprise complementary embodiments of the invention may also be included.
Die Begriffe radial und axial beziehen sich im Rahmen der vorliegenden Erfindung immer auf die Rotationsachse der Mehrfachkupplungseinnchtung bzw. des Hybridmoduls.  The terms radial and axial in the context of the present invention always refer to the axis of rotation of the Mehrfachkupplungseinnchtung or the hybrid module.
Die Erfindung betrifft eine Mehrfachkupplungseinrichtung für ein Hybridmodul zum Ankoppeln einer Verbrennungskraftmaschine, die eine Trennkupplung, mit der Drehmoment von der Verbrennungskraftmaschine auf die Mehrfachkupplungseinnchtung übertragbar ist und mit der die Mehrfachkupplungseinrichtung von der Verbrennungskraftmaschine trennbar ist, sowie eine Doppelkupplungsvorrichtung, mit der Drehmoment von einer elektrischen Maschine und/ oder von der Trennkupplung auf einen Antriebsstrang übertragbar ist, umfasst. Die Doppelkupplungsvorrichtung weist eine erste Teilkupplung und ein zweite Teilkupplung auf; sowie ein Getriebeelement zur Ausbildung eines Getriebes zwischen der elektrischen Maschine und der Mehrfach- kupplungseinrichtung zwecks Übertragung einer Drehbewegung zwischen der elektrischen Maschine und der Mehrfachkupplungseinrichtung. Die einzelnen Kupplungen und das Getriebeelement sind in einem Nassraum angeordnet. The invention relates to a multiple clutch device for a hybrid module for coupling an internal combustion engine, which is a separating clutch, with the torque from the internal combustion engine to the Mehrfachkupplungseinnchtung transferable and with the multiple clutch device is separable from the internal combustion engine, and a dual clutch device, with the torque of an electric machine and / or transferable from the separating clutch to a drive train. The dual clutch device has a first partial clutch and a second partial clutch; and a transmission element for forming a transmission between the electric machine and the multiple Coupling device for the purpose of transmitting a rotational movement between the electric machine and the multiple clutch device. The individual clutches and the transmission element are arranged in a wet room.
Diese Bauweise ermöglicht den Einsatz von verschleißgeminderten Nasskupplungen, ohne auf eine Kombination mit dem Betrieb eines Elektromotors zur Ausbildung eines Hybridmoduls verzichten zu müssen. This design allows the use of wear-reduced wet clutches, without having to forego a combination with the operation of an electric motor to form a hybrid module.
In einer Ausgestaltung der Mehrfachkupplungseinrichtung ist vorgesehen, dass die Kupplungen sowie das Getriebeelement um eine gemeinsame Rotationsachse koaxial angeordnet sind und der wirksame Durchmesser des Getriebeelementes geringer ist als der wirksame Durchmesser der mittels Reibschluss Drehmoment übertragenen Bestandteile einer jeweiligen Teilkupplung der Doppelkupplungsvorrichtung. Das heißt, dass der radiale Abstand des wirksamen Teilkreises des Getriebeelementes, in dem das Drehmoment vom Getriebeelement übertragen wird, geringer ist als der radi- ale Abstand der Lamellen der Teilkupplungen zur Rotationsachse, mit denen durch Reibschluss Drehmoment innerhalb der jeweiligen Kupplung übertragen wird. In one embodiment of the multiple clutch device is provided that the clutches and the transmission element are arranged coaxially about a common axis of rotation and the effective diameter of the transmission element is less than the effective diameter of the frictionally torque transmitted components of a respective part clutch of the dual clutch device. This means that the radial distance of the effective pitch circle of the transmission element, in which the torque is transmitted from the transmission element, is less than the radial distance of the fins of the partial clutches to the axis of rotation, with which torque is transmitted within the respective clutch by frictional engagement.
Damit lässt sich eine axial sehr kompakte Mehrfachkupplungseinrichtung bzw. ein axial sehr kompaktes Hybridmodul zur Verfügung stellen. Zudem werden dadurch hohe Umfangsgeschwindigkeiten des Getriebeelements verhindert, so dass das damit ausgebildete Getriebe einem geringeren Verschleiß unterliegt bzw. mit geringerem Aufwand realisierbar ist. This makes it possible to provide an axially very compact multiple coupling device or an axially very compact hybrid module. In addition, this high circumferential speeds of the transmission element are prevented, so that the thus formed transmission is subject to less wear or can be realized with less effort.
Die Mehrfachkupplungseinrichtung kann derart ausgestaltet sein, dass die Trennkupplung sowie die beiden Teilkupplungen einander radial überlagernd angeordnet sind. Das heißt, dass die Trennkupplung sowie die beiden Teilkupplungen radial ineinander verschachtelt angeordnet sind, wobei sie entlang der gemeinsamen Rotationsachse im Wesentlichen die gleiche Axialposition aufweisen, jedoch radial unterschiedliche Positionen bzw. Erstreckungsmaße aufweisen. Dabei kann die Trennkupplung in Bezug zu den beiden Teilkupplungen radial innen angeordnet sein. Das bedeutet, dass die beiden Teilkupplungen in Bezug zur Trennkupplung weiter außen und demzufolge an deren radialer Außenseite angeordnet sind, wobei eine der beiden Teilkupplungen die jeweils andere Teilkupplung radial außen überlagert. The multiple clutch device can be designed such that the separating clutch and the two partial clutches are arranged radially overlapping each other. This means that the separating clutch and the two partial clutches are arranged radially nested in one another, wherein they have substantially the same axial position along the common axis of rotation, but have radially different positions or extension dimensions. In this case, the separating clutch may be arranged radially in relation to the two partial clutches. This means that the two sub-clutches with respect to the separating clutch on the outside and therefore arranged on the radial outer side are, wherein one of the two part clutches superimposed on the other part coupling radially outward.
Weiterhin sollte die Mehrfachkupplungseinrichtung ein Trennkupplungsbetätigungs- System zur Betätigung der Trennkupplung aufweisen, wobei das Trennkupplungsbetä- tigungssystem zumindest abschnittsweise vom Getriebeelement radial überdeckt ist. Das bedeutet, dass sich das Trennkupplungsbetätigungssystem zumindest bereichsweise radial innerhalb des wirksamen Teilkreises des Getriebeelementes befindet, so dass hierdurch die axiale Erstreckung der Mehrfachkupplungseinrichtung weiterhin reduziert ist. Furthermore, the multiple clutch device should have a disconnect clutch actuation system for actuating the disconnect clutch, wherein the disconnect clutch actuation system is at least partially radially overlapped by the transmission element. This means that the separation clutch actuation system is at least partially radially within the effective pitch circle of the transmission element, so that in this way the axial extent of the multiple clutch device is further reduced.
Das Trennkupplungsbetätigungssystem kann eine im Wesentlichen ringförmige Kolben-Zylinder-Einheit aufweisen, deren Kolben im Wesentlichen axial translatorisch verschiebbar ist, und weiterhin ein ringförmiges Betätigungslager aufweisen, welches eine rotatorische Relativbewegung zwischen der Kolben-Zylinder-Einheit und einem zu betätigenden Kupplungselement der Trennkupplung erlaubt, wobei die radiale Erstreckung der Kolben-Zylinder-Einheit in Bezug zur Rotationsachse größer ist als der radiale Abstand einer Umlaufbahn des Betätigungslagers zur Rotationsachse. Dabei überlagert die Kolben-Zylinder-Einheit das Betätigungslager radial außen zumindest abschnittsweise. Auch durch diese Ausgestaltung der Mehrfachkupplungseinrichtung lässt sich deren axiale Erstreckung reduzieren. The separation clutch actuation system may comprise a substantially annular piston-cylinder unit, the piston is substantially axially translationally displaceable, and further comprising an annular actuating bearing, which allows a rotational relative movement between the piston-cylinder unit and a clutch element of the clutch to be actuated, wherein the radial extent of the piston-cylinder unit with respect to the axis of rotation is greater than the radial distance of an orbit of the actuating bearing to the axis of rotation. In this case, the piston-cylinder unit overlaps the actuating bearing radially outside at least in sections. Also by this configuration of the multiple coupling device can reduce their axial extent.
In einer weiteren vorteilhaften Ausgestaltung der Mehrfachkupplungseinrichtung ist vorgesehen, dass die Mehrfachkupplungseinrichtung ein erstes Betätigungssystem zur Betätigung der ersten Teilkupplung und ein zweites Betätigungssystem zur Betätigung der zweiten Teilkupplung aufweist, wobei das erste Betätigungssystem und das zweite Betätigungssystem einander radial zumindest abschnittsweise überlagern. Das heißt, dass hier für die Doppelkupplungsvorrichtung ein radial geschachtelter Doppel-Zentraleinrücker oder -ausrücker zur Anwendung kommen kann. In a further advantageous embodiment of the multiple coupling device, it is provided that the multiple coupling device has a first actuating system for actuating the first partial coupling and a second actuating system for actuating the second partial coupling, wherein the first actuating system and the second actuating system overlap each other radially at least in sections. This means that here for the dual clutch device a radially nested double central initiator or -ausrücker can be used.
Dabei kann vorgesehen sein, dass beide Betätigungssysteme jeweils eine im Wesentlichen ringförmige Kolben-Zylinder-Einheit aufweisen, deren Kolben im Wesentlichen axial translatorisch verschiebbar ist, und weiterhin jeweils ein ringförmiges Betäti- gungslager aufweisen, welches eine rotatorische Relativbewegung zwischen der Kolben-Zylinder-Einheit und einem zu betätigenden Kupplungselement der jeweiligen Teilkupplung erlaubt, wobei die radiale Erstreckung einer jeweiligen Kolben-Zylinder- Einheit in Bezug zur Rotationsachse größer ist als der Abstand einer Umlaufbahn ei- nes jeweiligen Betätigungslagers zur Rotationsachse. In alternativer Ausgestaltung ist vorgesehen, dass die radialen Erstreckungen der jeweiligen Kolben-Zylinder-Einheiten und der Umlaufbahnen gleich sind. It can be provided that both actuating systems each have a substantially annular piston-cylinder unit whose piston is substantially axially translationally displaceable, and further in each case an annular actuating having a bearing relative to the rotary axis of a respective piston-cylinder unit with respect to the axis of rotation is greater than the distance of an orbit of a respective one Actuating bearing to the rotation axis. In an alternative embodiment, it is provided that the radial extensions of the respective piston-cylinder units and the orbits are the same.
Das Getriebeelement kann ein Kettenrad zur Ausbildung eines Kettentriebes; ein Riemenrad zur Ausbildung eines Riementriebes; oder ein Zahnrad zur Ausbildung eines Zahnradgetriebes sein. The transmission element may be a sprocket for forming a chain drive; a pulley for forming a belt drive; or a gear for forming a gear transmission.
In der Ausgestaltung als Riemenrad bietet es sich an, den Riementrieb als Zahnriementrieb oder Keilriementrieb auszubilden.  In the embodiment as a pulley, it makes sense to form the belt drive as a toothed belt drive or V-belt drive.
Ein realisiertes Zahnradgetriebe kann einstufig oder mehrstufig ausgeführt sein.  A realized gear transmission can be designed in one or more stages.
Die Mehrfachkupplungseinrichtung weist vorzugsweise ein den Kupplungen der Mehrfachkupplungseinrichtung gemeinsames Rotationsteil auf, welches sich an zwei Schrägkugellagern abstützt, die in Reihe entlang der Rotationsachse angeordnet sind. Das dem Anschluss für eine Verbrennungskraftmaschine zugewandte erste Schräg- kugellager nimmt von den Teilkupplungen übertragene axiale Kräfte auf, und das dem Anschluss für ein Getriebe zugewandte zweite Schrägkugellager nimmt von der Trennkupplung übertragene axiale Kräfte auf. Durch diese Ausgestaltung können die Schrägkugellager vorgespannt ausgeführt sein, um lagerspielbedingte Axialbewegungen der Kupplungen zu vermeiden, wenn ein Richtungswechsel der aus den Klemm- kräften der Trennkupplung sowie der beiden Teilkupplungen resultierenden Kraft erfolgen sollte. The multiple clutch device preferably has a rotary part common to the clutches of the multiple clutch device, which is supported on two angular contact ball bearings arranged in series along the axis of rotation. The first angular contact ball bearing facing the connection for an internal combustion engine absorbs axial forces transmitted by the part couplings, and the second angular contact ball bearing facing the connection for a transmission absorbs axial forces transmitted by the separating clutch. As a result of this configuration, the angular contact ball bearings can be prestressed in order to avoid bearing play-related axial movements of the clutches if a change in direction of the forces resulting from the clamping forces of the separating clutch and the two partial clutches should take place.
Neben der axialen Führung erfolgt durch die Schrägkugellager selbstverständlich auch eine radiale Lagerung und Führung des gemeinsamen Rotationsteils der Kupplungen.  In addition to the axial guidance of the angular contact ball bearings is of course also a radial bearing and guiding the common rotational part of the clutches.
Das gemeinsame Rotationsteil ist auch dazu ausgestaltet, das Getriebeelement aufzunehmen. In alternativer Ausgestaltung ist das Getriebeelement durch das gemeinsame Rotationsteil ausgebildet. Somit nehmen die Schrägkugellager auch die vom Getriebeelement in das gemeinsame Rotationsteil eingeleitete resultierende Kraft auf. Die Schrägkugellager selbst werden dabei durch eine Auskragung des Kupplungsdeckels axial und radial abgestützt. Diese Auskragung bzw. dieser Bestandteil des Kupplungsdeckels ist auch dazu ausgestaltet, Lager einer Kupplungseingangswelle aufzunehmen, mit der die Mehrfachkupplungseinrichtung mit einem Verbrennungsaggregat gekoppelt oder koppelbar ist. Vorzugsweise ist dabei die Kupplungseingangswelle an der Auskragung mit einem als Festlager ausgestalteten Wälzlager sowie mit einem als Loslager ausgestalteten Nadellager gelagert. Zur Lösung der Aufgabe wird weiterhin ein Hybridmodul zur Verfügung gestellt, welches eine erfindungsgemäße Mehrfachkupplungseinrichtung sowie eine elektrische Maschine zur Erzeugung eines Antriebsdrehmoments mit einem Rotor umfasst, wobei der Rotor in Bezug zur Rotationsachse der Mehrfachkupplungseinrichtung achsparallel angeordnet ist und mittels eines Getriebes, welches das Getriebeelement der Mehrfachkupplungseinrichtung umfasst, mit der Mehrfachkupplungseinrichtung verbunden ist. Mit dem Getriebe kann somit ein Drehmoment bzw. eine Drehbewegung von der elektrischen Maschine auf die Mehrfachkupplungseinrichtung zum Antrieb der Mehrfachkupplungseinrichtung und demzufolge eines Antriebsmoduls, bzw. in umgekehrter Richtung von der Mehrfachkupplungseinrichtung auf die elektrische Maschine zwecks Rekuperation erfolgen. The common rotation part is also configured to receive the transmission element. In an alternative embodiment, the transmission element is formed by the common rotation part. Thus take the angular contact ball bearings also from the Transmission element in the common rotation part introduced resulting force. The angular contact ball bearings themselves are axially and radially supported by a projection of the clutch cover. This projection or this component of the clutch cover is also configured to receive bearings of a clutch input shaft with which the multiple clutch device is coupled or can be coupled to a combustion unit. Preferably, the clutch input shaft is mounted on the projection with a roller bearing designed as a fixed bearing and with a designed as a floating bearing needle bearing. To solve the problem, a hybrid module is further provided which comprises a multiple clutch device according to the invention and an electric machine for generating a drive torque with a rotor, wherein the rotor is arranged axially parallel with respect to the axis of rotation of the multiple clutch device and by means of a transmission, which the transmission element of Multiple coupling device comprises, is connected to the multiple coupling device. With the transmission, a torque or a rotational movement can thus take place from the electric machine to the multiple clutch device for driving the multiple clutch device and consequently a drive module, or in the reverse direction from the multiple clutch device to the electric machine for the purpose of recuperation.
Das Hybridmodul kann dabei derart ausgestaltet sein, dass der Rotor der elektrischen Maschine außerhalb des Nassraums angeordnet ist und mit einem weiteren Getriebeelement rotationsfest verbindbar oder verbunden ist, welches zusammen mit dem Ge- triebeelement der Mehrfachkupplungseinrichtung das Getriebe ausbildet, und dass das weitere Getriebeelement ebenfalls im Nassraum angeordnet ist und zwischen dem weiteren Getriebeelement und dem Rotor der elektrischen Maschine eine Dichtung zur Abdichtung des Nassraums angeordnet ist. Ergänzend wird eine Antriebsanordnung für ein Kraftfahrzeug mit einer Verbrennungskraftmaschine und einem erfindungsgemäßen Hybridmodul sowie mit einem Fahrzeuggetriebe zur Verfügung gestellt, wobei das Hybridmodul mit der Verbren- nungskraftmaschine und dem Fahrzeuggetriebe mechanisch über Kupplungen des Hybridmoduls verbunden ist. The hybrid module can be designed such that the rotor of the electric machine is arranged outside the wet space and connected rotationally fixed or connected to another transmission element which forms the transmission together with the gear element of the multiple clutch device, and that the further transmission element also in the Wet space is arranged and between the further transmission element and the rotor of the electric machine, a seal for sealing the wet space is arranged. In addition, a drive arrangement for a motor vehicle with an internal combustion engine and a hybrid module according to the invention and with a vehicle transmission is provided, wherein the hybrid module is equipped with the combustion engine. combustion engine and the vehicle transmission is mechanically connected via couplings of the hybrid module.
Die oben beschriebene Erfindung wird nachfolgend vor dem betreffenden technischen Hintergrund unter Bezugnahme auf die zugehörige Zeichnung, welche eine bevorzugte Ausgestaltung zeigt, detailliert erläutert. Die Erfindung wird durch die rein schematische Zeichnung in keiner Weise beschränkt, wobei anzumerken ist, dass das in der Zeichnung gezeigte Ausführungsbeispiel nicht auf die dargestellten Maße eingeschränkt ist. The invention described above will be explained in detail in the following with reference to the accompanying drawing, which shows a preferred embodiment. The invention is not limited by the purely schematic drawing in any way, it being noted that the embodiment shown in the drawing is not limited to the dimensions shown.
Es zeigt die einzige Figur 1 eine erfindungsgemäße Mehrfachkupplungseinrichtung in einem Teilschnitt. The sole FIGURE 1 shows a multiple coupling device according to the invention in a partial section.
Ersichtlich ist, dass auf einer gemeinsamen Rotationsachse 1 eine Trennkupplung 10 sowie eine Doppelkupplungsvorrichtung 30 angeordnet sind. Die Doppelkupplungs- Vorrichtung 30 umfasst eine erste Teilkupplung 40 und eine zweite Teilkupplung 50. Alle drei Kupplungen 10,40,50 sind in einem Nassraum 90 angeordnet. Das bedeutet, dass alle drei Kupplungen 10,40,50 alle als Nasskupplungen ausgeführt sind. Des Weiteren sind alle drei Kupplungen 10,40,50 über ein gemeinsames Rotationsteil 80 rotatorisch miteinander gekoppelt.  It is apparent that on a common axis of rotation 1, a separating clutch 10 and a dual clutch device 30 are arranged. The dual clutch device 30 comprises a first partial clutch 40 and a second partial clutch 50. All three clutches 10, 40, 50 are arranged in a wet chamber 90. This means that all three clutches 10,40,50 are all designed as wet clutches. Furthermore, all three clutches 10, 40, 50 are rotationally coupled to one another via a common rotary part 80.
An dem gemeinsamen Rotationsteil 80 ist ein Getriebeelement 70 fest angeordnet, welches in der hier dargestellten Ausführungsform ein Kettenrad zur Ausbildung eines Kettentriebes ist. Dieser Kettentrieb ist mit einem Ritzel einer hier nicht dargestellten elektrischen Maschine verbunden, die außerhalb des Nassraums 90 angeordnet ist. Derart lässt sich von der elektrischen Maschine auf das gemeinsame Rotationsteil 80 und demzufolge auf alle drei Kupplungen 10,40, 50 Drehmoment übertragen, und in umgekehrter Richtung. Zwischen dem der elektrischen Maschine zugeordneten Ritzel und dem Rotor der elektrischen Maschine ist eine hier nicht dargestellte Dichtung zur Abdichtung des Nassraums 90 angeordnet. On the common rotation part 80, a transmission element 70 is fixed, which in the embodiment shown here is a sprocket for forming a chain drive. This chain drive is connected to a pinion of an electric machine, not shown here, which is arranged outside of the wet space 90. In this way, torque can be transmitted from the electric machine to the common rotary part 80 and consequently to all three clutches 10, 40, 50, and in the opposite direction. Between the electric machine associated pinion and the rotor of the electric machine, a seal, not shown here for sealing the wet chamber 90 is arranged.
Der Trennkupplung 10 ist ein Trennkupplungsbetätigungssystem 1 1 zugeordnet, wel- ches eine ringförmige Kolben-Zylinder-Einheit 12 sowie ein Betätigungslager 20 umfasst. Die radiale Erstreckung 13 der Kolben-Zylinder-Einheit 12 ist dabei ersichtlich größer als der radiale Abstand der Umlaufbahn 21 des Betätigungslagers 20 zur Rotationsachse 1 . Dies ermöglicht die dargestellte radiale Verschachtelung der Kolben- Zylinder-Einheit 12 und des Betätigungslagers 20. The disconnect clutch 10 is associated with a disconnect clutch actuation system 11, which comprises an annular piston-cylinder unit 12 and an actuation bearing 20. The radial extent 13 of the piston-cylinder unit 12 is clearly larger than the radial distance of the orbit 21 of the actuating bearing 20 to the axis of rotation. 1 This allows the illustrated radial interleaving of the piston-cylinder unit 12 and the actuating bearing 20th
Es ist ersichtlich, dass der wirksame Durchmesser 71 des Getriebeelementes 70 geringer ist als der wirksame Durchmesser 60 der mittels Reibschluss Drehmoment übertragenen Bestandteile der Doppelkupplungsvorrichtung 30 bzw. deren erster Teilkupplung 40 und zweiter Teilkupplung 50. Dies bewirkt, dass ein von einer angekop- pelten elektrischen Maschine eingetragenes Drehmoment mit einer relativ geringen Umfangsgeschwindigkeit des Getriebeelementes auf die Mehrfachkupplungseinrichtung übertragen wird, sodass die Schwingungsneigung verringert ist. Zudem wird gleichzeitig die achsparallele Anordnung der elektrischen Maschine ermöglicht, und zwar im Wesentlichen unabhängig vom Abstand zur Rotationsachse 1 . It can be seen that the effective diameter 71 of the transmission element 70 is less than the effective diameter 60 of the frictionally torque torque transmitted components of the dual clutch device 30 and the first part of clutch 40 and second part of the clutch 50. This causes one of a coupled peltelten electrical Registered torque is transmitted to the multiple clutch device with a relatively low peripheral speed of the transmission element, so that the tendency to oscillate is reduced. In addition, at the same time the axis-parallel arrangement of the electric machine is made possible, essentially independently of the distance to the axis of rotation 1.
Ein der ersten Teilkupplung 40 zugeordnetes erstes Betätigungssystem 41 und der zweiten Teilkupplung 50 zugeordnetes zweites Betätigungssystem 51 sind radial ineinander verschachtelt angeordnet. A first actuating system 41 associated with the first partial clutch 40 and the second actuating system 51 associated with the second partial clutch 50 are arranged radially nested one inside the other.
Durch die dargestellten Maßnahmen ist eine axial sehr kompakt bauende Kupplungseinrichtung realisierbar.  By the measures shown an axially very compact design coupling device can be realized.
Von einer Antriebswelle bzw. Kupplungseingangswelle 130, die mit einem hier nicht dargestellten Verbrennungsaggregat koppelbar ist, kann Drehmoment in die Trennkupplung 10 über deren Trennkupplung-Lamellenträger 22 eingeleitet werden. Bei Schließung der Trennkupplung 10 mittels Betätigung des Trennkupplungsbetäti- gungssystems 1 1 wird von der Trennkupplung 10 Drehmoment auf das gemeinsame Rotationsteil 80 übertragen. Je nach Schließung einer der mit dem gemeinsamen Rotationsteil 80 verbundenen Teilkupplung 40,50 wird von dieser Teilkupplung 40,50 Drehmoment über einen jeweiligen ersten Lamellenträger 42 bzw. zweiten Lamellenträger 52 auf eine erste Getriebeeingangswelle 100 bzw. auf eine zweite Getriebeeingangswelle 101 übertragen. Zu diesem Zweck wird mittels des ersten Betätigungssys- tems 41 ein erster Drucktopf 43 bzw. mittels eines zweiten Betätigungssystems 51 ein zweiter Drucktopf 53 zur Schließung der jeweiligen Teilkupplung 40,50 axial verschoben. Das gemeinsame Rotationsteil 80 ist mit einer Lagerung rotatorisch an einem Kupplungsdeckel 120 bzw. dessen axialer Auskragung 121 gelagert. Diese Lagerung um- fasst ein erstes Schrägkugellager 1 1 1 sowie ein zweites Schrägkugellager 1 12. Die beiden Schrägkugellager 1 1 1 , 1 12 sind derart ausgestaltet und angeordnet, dass sie die von den Kupplungen 20,40,50 eingetragenen axialen Kräfte aufnehmen können und an den Kupplungsdeckel 120 bzw. dessen Auskragung 121 übertragen können. Ebenfalls an dem Kupplungsdeckel 120 bzw. dessen Auskragung 121 rotatorisch gelagert ist die Kupplungseingangswelle 130, und zwar mittels eines als Wälzlager ausgeführten Festlagers 131 sowie mittels eines als Nadellager ausgeführten Loslagers 132. From a drive shaft or clutch input shaft 130 which can be coupled with a combustion unit, not shown here, torque can be introduced into the separating clutch 10 via the separating clutch plate carrier 22. Upon closure of the disconnect clutch 10 by actuation of the disconnect clutch actuation system 11, torque is transferred to the common rotary part 80 by the disconnect clutch 10. Depending on the closure of one of the partial coupling 40, 50 connected to the common rotary part 80, torque is transmitted from this partial coupling 40, 50 via a respective first plate carrier 42 or second plate carrier 52 to a first transmission input shaft 100 or to a second transmission input shaft 101. For this purpose, by means of the first actuation system 41, a first pressure pot 43 or, by means of a second actuation system 51, a second pressure pot 53 for axially displacing the respective part-coupling 40, 50 is displaced. The common rotary part 80 is rotatably mounted with a bearing on a clutch cover 120 and its axial projection 121. This bearing comprises a first angular contact ball bearing 1 1 1 and a second angular contact ball bearing 1 12. The two angular contact ball bearings 1 1 1, 1 12 are configured and arranged so that they can absorb the axial forces registered by the couplings 20,40,50 and to the clutch cover 120 and its projection 121 can transmit. Also rotatably mounted on the clutch cover 120 and its projection 121 is the clutch input shaft 130, by means of a fixed bearing 131 designed as a roller bearing and by means of a movable bearing 132 designed as a needle bearing.
Insgesamt stellt die vorliegende Erfindung eine Mehrfachkupplungseinrichtung zur Verfügung, die aufgrund der Anordnung der Kupplungen im Nassraum eine hohe Lebenserwartung mit einem axial sehr gering bemessenen Bauraum aufweist. Overall, the present invention provides a multiple clutch device available, which has a high life expectancy with an axially very small dimensioned space due to the arrangement of the couplings in the wet room.
BezuqszeichenlisteLIST OF REFERENCES
1 Rotationsachse 1 rotation axis
10 Trennkupplung  10 separating clutch
1 1 Trennkupplungsbetätigungssystem  1 1 disconnect actuation system
12 Kolben-Zylinder-Einheit  12 piston-cylinder unit
13 Radiale Erstreckung  13 Radial extent
20 Betätigungslager  20 actuating bearing
21 Radialer Abstand der Umlaufbahn  21 Radial distance of the orbit
22 Trennkupplung-Lamellenträger  22 Disconnect-plate carrier
30 Doppelkupplungsvorrichtung  30 double clutch device
40 erste Teilkupplung  40 first part clutch
41 erstes Betätigungssystem  41 first actuation system
42 erster Lamellenträger  42 first plate carrier
43 erster Drucktopf  43 first pressure pot
50 zweite Teilkupplung  50 second part clutch
51 zweites Betätigungssystem  51 second actuation system
52 zweiter Lamellenträger  52 second plate carrier
53 zweiter Drucktopf  53 second pressure pot
60 wirksamer Durchmesser  60 effective diameter
70 Getriebeelement  70 transmission element
71 wirksamer Durchmesser  71 effective diameter
80 gemeinsames Rotationsteil  80 common rotation part
90 Nassraum  90 wet room
100 erste Getriebeeingangswelle  100 first transmission input shaft
101 zweite Getriebeeingangswelle  101 second transmission input shaft
1 1 1 erstes Schrägkugellager  1 1 1 first angular contact ball bearing
1 12 zweites Schrägkugellager  1 12 second angular contact ball bearings
120 Kupplungsdeckel  120 clutch cover
121 Auskragung  121 cantilever
130 Kupplungseingangswelle Festlager der Kupplungseingangswelle Loslager der Kupplungseingangswelle 130 clutch input shaft Fixed bearing of the clutch input shaft Moving bearing of the clutch input shaft

Claims

Patentansprüche claims
Mehrfachkupplungseinrichtung für ein Hybridmodul zum Ankoppeln einer Verbrennungskraftmaschine, umfassend: A multiple clutch device for a hybrid module for coupling an internal combustion engine, comprising:
eine Trennkupplung (10), mit der Drehmoment von der Verbrennungskraftmaschine auf die Mehrfachkupplungseinrichtung übertragbar ist und mit der die Mehrfachkupplungseinrichtung von der Verbrennungskraftmaschine trennbar ist; eine Doppelkupplungsvorrichtung (30), mit der Drehmoment von einer elektrischen Maschine und/ oder von der Trennkupplung (10) auf einen Antriebsstrang übertragbar ist, mit einer ersten Teilkupplung (40) und einer zweiten Teilkupplung (50); sowie ein Getriebeelement (70) zur Ausbildung eines Getriebes zwischen der elektrischen Maschine und der Mehrfachkupplungsein richtung zwecks Übertragung einer Drehbewegung zwischen der elektrischen Maschine und der Mehrfachkupplungseinrichtung, wobei die einzelnen Kupplungen und das Getriebeelement in einem Nassraum (90) angeordnet sind. a disconnect clutch (10) with which torque from the internal combustion engine is transferable to the multiple clutch device and with which the multiple clutch device is separable from the internal combustion engine; a dual clutch device (30), with the torque from an electric machine and / or from the separating clutch (10) is transferable to a drive train, with a first part clutch (40) and a second part clutch (50); and a transmission element (70) for forming a transmission between the electric machine and the Mehrfachkupplungsein direction for the purpose of transmitting a rotational movement between the electric machine and the multiple clutch device, wherein the individual clutches and the transmission element in a wet space (90) are arranged.
Mehrfachkupplungseinrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Kupplungen (10,40,50) sowie das Getriebeelement (70) um eine gemeinsame Rotationsachse (1 ) koaxial angeordnet sind und der wirksame Durchmesser (71 ) des Getriebeelementes (70) geringer ist als der wirksame Durchmesser (60) der mittels Reibschluss Drehmoment übertragenen Bestandteile einer jeweiligen Teilkupplung (40,50) der Doppelkupplungsvorrichtung (30). Multiple coupling device according to claim 1, characterized in that the couplings (10,40,50) and the transmission element (70) about a common axis of rotation (1) are arranged coaxially and the effective diameter (71) of the transmission element (70) is less than that effective diameter (60) of the frictionally torque transmitted components of a respective part clutch (40,50) of the dual clutch device (30).
Mehrfachkupplungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Trennkupplung (10) sowie die beiden Teilkupplungen (40,50) einander radial überlagernd angeordnet sind. Multiple coupling device according to one of the preceding claims, characterized in that the separating clutch (10) and the two partial clutches (40,50) are arranged radially superimposed one another.
Mehrfachkupplungseinrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Trennkupplung (10) in Bezug zu den beiden Teilkupplungen (40,50) radial innen angeordnet ist. Multiple coupling device according to claim 3, characterized in that the separating clutch (10) with respect to the two partial couplings (40,50) is arranged radially inward.
5. Mehrfachkupplungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Mehrfachkupplungseinrichtung ein Trenn- kupplungsbetätigungssystem (1 1 ) zur Betätigung der Trennkupplung (10) auf- weist, wobei das Trennkupplungsbetätigungssystem (1 1 ) zumindest abschnittsweise vom Getriebeelement (70) radial überdeckt ist. 5. Multiple clutch device according to one of the preceding claims, characterized in that the multiple clutch device comprises a clutch actuation system (1 1) for actuating the separating clutch (10), wherein the separating clutch actuation system (1 1) at least partially radially overlapped by the transmission element (70) is.
Mehrfachkupplungseinrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Trennkupplungsbetätigungssystem (1 1 ) eine im Wesentlichen ringförmige Kolben-Zylinder-Einheit (12) aufweist, deren Kolben im Wesentlichen axial translatorisch verschiebbar ist, und weiterhin ein ringförmiges Betätigungslager (20) aufweist, welches eine rotatorische Relativbewegung zwischen der Kolben-Zylinder-Einheit (12) und einem zu betätigenden Kupplungselement der Trennkupplung (10) erlaubt, wobei die radiale Erstreckung der Kolben- Zylinder-Einheit (12) in Bezug zur Rotationsachse (1 ) größer ist als der radiale Abstand (21 ) einer Umlaufbahn des Betätigungslagers (20) zur Rotationsachse (1 ), und die Kolben-Zylinder-Einheit (12) das Betätigungslager (20) radial außen zumindest abschnittsweise überlagert. Multiple coupling device according to claim 5, characterized in that the separating clutch actuating system (1 1) comprises a substantially annular piston-cylinder unit (12) whose piston is substantially axially translationally displaceable, and further comprising an annular actuating bearing (20), which rotatory relative movement between the piston-cylinder unit (12) and a clutch element to be actuated the separating clutch (10) allowed, wherein the radial extent of the piston-cylinder unit (12) with respect to the axis of rotation (1) is greater than the radial distance (21) an orbit of the actuating bearing (20) to the rotation axis (1), and the piston-cylinder unit (12) the actuating bearing (20) radially outwardly at least partially superimposed.
Mehrfachkupplungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Mehrfachkupplungseinrichtung ein erstes Betätigungssystem (41 ) zur Betätigung der ersten Teilkupplung (40) und ein zweites Betätigungssystem (51 ) zur Betätigung der zweiten Teilkupplung (50) aufweist, Multiple clutch device according to one of the preceding claims, characterized in that the multiple clutch device has a first actuating system (41) for actuating the first partial clutch (40) and a second actuating system (51) for actuating the second partial clutch (50),
wobei das erste Betätigungssystem (41 ) und das zweite Betätigungssystem (51 ) einander radial zumindest abschnittsweise überlagern.  wherein the first actuating system (41) and the second actuating system (51) overlap each other radially at least in sections.
Mehrfachkupplungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Getriebeelement (70): Multiple coupling device according to one of the preceding claims, characterized in that the transmission element (70):
a) ein Kettenrad zur Ausbildung eines Kettentriebes,  a) a sprocket for forming a chain drive,
b) ein Riemenrad zur Ausbildung eines Riementriebes, oder  b) a pulley for forming a belt drive, or
c) ein Zahnrad zur Ausbildung eines Zahnradgetriebes ist. c) is a gear for forming a gear transmission.
9. Hybridmodul, umfassend eine Mehrfachkupplungseinrichtung nach einem der Ansprüche 1 bis 8 sowie eine elektrische Maschine zur Erzeugung eines Antriebsdrehmoments mit einem Rotor, wobei der Rotor in Bezug zur Rotationsachse 1 der Mehrfachkupplungseinrichtung achsparallel angeordnet ist und mittels eines Getriebes, welches das Getriebeelement (70) der Mehrfachkupplungseinrichtung umfasst, mit der Mehrfachkupplungseinrichtung verbunden ist. 9. hybrid module, comprising a multiple clutch device according to one of claims 1 to 8 and an electric machine for generating a drive torque with a rotor, wherein the rotor is arranged axially parallel with respect to the axis of rotation 1 of the multiple clutch device and by means of a transmission which the transmission element (70) the multiple clutch device comprises, is connected to the multiple clutch device.
10. Hybridmodul nach Anspruch 9, dass der Rotor der elektrischen Maschine außerhalb des Nassraums (90) angeordnet ist und mit einem weiteren Getriebeelement rotationsfest verbindbar oder verbunden ist, welches zusammen mit dem Getriebeelement (70) der Mehrfachkupplungseinrichtung das Getriebe ausbildet, und dass das weitere Getriebeelement ebenfalls im Nassraum (90) angeordnet ist und zwischen dem weiteren Getriebeelement und dem Rotor der elektrischen Maschine eine Dichtung zur Abdichtung des Nassraums (90) angeordnet ist. 10. hybrid module according to claim 9, that the rotor of the electric machine outside the wet space (90) is arranged and connected rotationally fixed with another transmission element or connected, which forms the transmission together with the transmission element (70) of the multiple clutch device, and that further Gear element is also disposed in the wet space (90) and between the further gear member and the rotor of the electric machine, a seal for sealing the wet space (90) is arranged.
PCT/DE2017/100168 2016-09-20 2017-03-03 Multi-clutch system and hybrid module for a motor vehicle WO2018054413A1 (en)

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